13990145

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 19160064

約数和(自身を除く): 5169919

約数列:

[1, 5, 13, 31, 53, 65, 131, 155, 265, 403, 655, 689, 1643, 1703, 2015, 3445, 4061, 6943, 8215, 8515, 20305, 21359, 34715, 52793, 90259, 106795, 215233, 263965, 451295, 1076165, 2798029, 13990145]

約数ペア:

[(1, 13990145), (5, 2798029), (13, 1076165), (31, 451295), (53, 263965), (65, 215233), (131, 106795), (155, 90259), (265, 52793), (403, 34715), (655, 21359), (689, 20305), (1643, 8515), (1703, 8215), (2015, 6943), (3445, 4061)]